*{
    margin:0;
    padding:0;
    font-family:'calibri';
    box-sizing: border-box;
    }
    html{
        scroll-behavior: smooth;
    }
    body{
        background-color:rgb(2, 24, 43);
        color:#fff;
    }
    
    .container{
      padding: 10px 10%;  
    }
    .sub-title{
        text-align: center;
    }
    .activities-desc{
        text-align: center;
    }
    
    nav{
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
    }
    .logo{
        width: 60px;
    }
    nav ul li{
        display: inline-block;
        list-style: none;
        margin: 10px 20px;
    }
    nav ul li a{
        color: white;
        text-decoration:none;
        font-size: 18px;
        position: relative;
    }
    nav ul li a::after{
        content: '';
        width: 0;
        height:3px ;
        background: #ff004f;
        position: absolute;
        left: 0;
        bottom: -6px;
        transition: 0.5s;
    }
    nav ul li a:hover::after{
        width: 100%;
    }
    #activities{
        padding: 30px 0;
        background-color:black;
    }
    .activities-list{
        display:grid;
        grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
        column-gap: 40px;
        margin-top: 50px;
    }
    .activities-list div{
        margin-bottom: 20px;
        background: #262626;
        padding: 40px;
        font-size: 15px;
        font-weight: 300;
        border-radius: 10px;
        transition: background 0.5s,transform 0.5s;
    }
    .activities-list div i{
    font-size:50px;
    margin-bottom:30px;
    }
    .activities-list div h2{
        font-size: 30px;
        font-weight: 500;
        margin-bottom: 15px;
    }
    .activities-list div a{
        text-decoration: none;
        color:rgb(255, 0, 153);
        font-size: 12px;
        margin-top: 20px;
        display: inline-block;
    }
    .activities-list div:hover{
        background:navy;
        transform: translateX(10px);
    }
    .social-icons{
        margin-top: 30px;
    }
    .social-icons a{
        text-decoration: none;
        font-size: 30px;
        margin-right: 15px;
        color: white;
    }
    .social-icons a:hover{
        color:blue;
        transform: translateY(-5px);
    }
    
    .copyright{
        width: 100%;
        text-align: center;
        padding: 25px 0;
        background: #262626;
        margin-top: 20px;
        font-weight: 300;
    }
    nav .fas{
        display:none;
    }

    /*---small screens---*/
    @media only screen and (max-width:600px){ 
        .logo{
         width: 35px;
     }
         nav .fas{
         display:block;
         font-size: 25px;
         }
         nav ul{
             background: #ff004f;
             position: fixed;
             top: 0;
             right:-200px;
             width: 200px;
             height: 100vh;
             padding-top: 50px;
             z-index: 2;
             transition: right 0.5s;
         }
         nav ul li{
             display: block;
             margin: 25px;
         }
         nav ul .fas{
             position: absolute;
             top: 25px;
             left:25px;
             cursor: pointer;
         }
         .sub-title{
             font-size: 40px;
         }
         .copyright{
             font-size: 14px;
         }
         .social-icons{
         margin-top: 30px;
         }
         .social-icons a{
         text-decoration: none;
         font-size: 20px;
         margin-right: 15px;
         color: white;
         }
        }